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公开(公告)号：US12207236B2
公开(公告)日：2025-01-21
申请号：US18181435
申请日：2023-03-09
Applicant: QUALCOMM Incorporated
Inventor： Marwen Zorgui , Srinivas Yerramalli , Xiaoxia Zhang , Piyush Gupta , Rajat Prakash , Junyi Li , Xiaojie Wang , Mohammad Tarek Fahim
Abstract: In an aspect, a position estimation entity (e.g., UE, gNB, LMF, etc.) identifies a pool of UEs for a SL-assisted position estimation procedure of a set of target UEs. SL SRS-Ps are communicated (e.g., transmitted and measured) between the pool of UEs (e.g., for relative SL ranging). UL SRS-Ps are communicated by at least some of the UEs in the pool of UEs. The position estimation entity obtains measurement data for both the SL SRS-P and UL-SRS-P communications. The position estimation entity determines a position estimate for each UE in the set of UEs based on the measurement information.
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公开(公告)号：US12206465B2
公开(公告)日：2025-01-21
申请号：US17657920
申请日：2022-04-04
Applicant: QUALCOMM Incorporated
Inventor： Roohollah Amiri , Srinivas Yerramalli , Taesang Yoo , Mohammed Ali Mohammed Hirzallah , Marwen Zorgui , Mohammad Tarek Fahim , Rajat Prakash , Xiaoxia Zhang
IPC: H04B17/391 , H04B17/309 , H04W4/02 , H04W24/02 , H04W24/10 , H04W64/00
Abstract: Methods and apparatus for predicting wireless measurements based on virtual access points is described. In some embodiments, a location of a user equipment (UE) may be obtained, and given the location of the UE, an output may be generated using a machine learning model, the output including one or more predicted wireless measurements. The output may be indicative of a wireless channel in a multipath environment. In some variants, the machine learning model may have been trained by obtaining a training dataset including multipath components data and ground truth locations of a wireless device, and performing an optimization with respect to the multipath components data and the ground truth locations. In some implementations, a training output including a predicted multipath component may be produced during the training, and the optimization may include an iterative minimization of an error between at least the predicted multipath component and a labeled multipath component.
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公开(公告)号：US20240172166A1
公开(公告)日：2024-05-23
申请号：US18058148
申请日：2022-11-22
Applicant: QUALCOMM Incorporated
Inventor： Mohammad Tarek Fahim , Srinivas Yerramalli , Piyush Gupta , Xiaojie Wang , Xiaoxia Zhang , Rajat Prakash
IPC: H04W64/00 , G01N23/203 , G06K19/077
CPC classification number: H04W64/00 , G01N23/203 , G06K19/07758
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving a tag device indicator that indicates a tag capability of a tag device. The method also includes transmitting, to a first transmission/reception point (TRP) of a plurality of TRPs, a positioning reference signal (PRS) configuration associated with a PRS, the PRS configuration based on the tag capability, the plurality of TRPs including the first TRP designated as a transmit (Tx) TRP and a second TRP designated as a receive (Rx) TRP. The method further includes receiving a measurement report from the second TRP based on a backscatter signal of the positioning reference signal transmitted by the first TRP. Other aspects and features are also claimed and described.
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公开(公告)号：US11438119B2
公开(公告)日：2022-09-06
申请号：US17100401
申请日：2020-11-20
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Alexandros Manolakos , Mukesh Kumar , Rajat Prakash , Xiaoxia Zhang , Mohammad Tarek Fahim
Abstract: A user equipment includes a processor configured to: receive a first, second, and third reference signals including a first, second, and third sets of tones, and spanning first, second, and third frequency ranges in first and second sets of symbols and at least one third symbol, respectively, the first and second frequency ranges differing; where at least one of (1) the third frequency range overlaps the first frequency range, or (2) the at least one third symbol overlaps with the first set of symbols and the third frequency range overlaps the second frequency range; determine an offset between the first reference signal and the supplemental signal using the third set of tones; and determine a first indication, of a time and/or a range, based on a combination of the first reference signal and the second reference signal using the offset.
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公开(公告)号：US20240427005A1
公开(公告)日：2024-12-26
申请号：US18338343
申请日：2023-06-20
Applicant: QUALCOMM Incorporated
Inventor： Mohammad Tarek Fahim , Srinivas Yerramalli , Jing Sun
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter based positioning. In a first aspect, a method of wireless communication includes receiving, from a transmit network entity, a data signal via a first channel. The method also includes receiving, from a tag device, a backscatter signal based on the data signal received by the tag device via the first channel. The backscatter signal is received via a second channel that is different from the first channel. The method further includes transmitting a report that indicates a position measurement associated with a position of the tag device. The position measurement is determined based on the received data signal and the received backscatter signal. Other aspects and features are also claimed and described.
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Patent Agency Ranking
公开(公告)号：US20240175963A1
公开(公告)日：2024-05-30
申请号：US18060418
申请日：2022-11-30
Applicant: QUALCOMM Incorporated
Inventor： Mohammad Tarek Fahim , Srinivas Yerramalli , Xiaojie Wang , Jing Sun
CPC classification number: G01S5/0036 , H04L5/0051 , H04W24/10
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving multiple measurement reports associated with a tag device. The multiple measurement including, for each transmission/reception point (TRP) of multiple TRPs, a measurement report of the TRP. The method further includes determining, based on the multiple measurement reports, a position of the tag device having a tag delay that is unknown to a network entity.
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公开(公告)号：US20240185017A1
公开(公告)日：2024-06-06
申请号：US18073488
申请日：2022-12-01
Applicant: QUALCOMM Incorporated
Inventor： Xiaojie Wang , Jing Sun , Mohammad Tarek Fahim , Srinivas Yerramalli
IPC: G06K19/067 , H04B17/10 , H04L43/0864
CPC classification number: G06K19/0675 , H04B17/104 , H04L43/0864
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving multiple measurement reports associated with a surface acoustic wave (SAW) tag device. The multiple measurement reports include, for each transmission/reception point (TRP) of multiple TRPs, a measurement report of the TRP. The method also includes determining, based on the multiple measurement reports, a position of the SAW tag device. Other aspects and features are also claimed and described.
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公开(公告)号：US20240179666A1
公开(公告)日：2024-05-30
申请号：US18060385
申请日：2022-11-30
Applicant: QUALCOMM Incorporated
Inventor： Xiaojie Wang , Jing Sun , Mohammad Tarek Fahim , Srinivas Yerramalli
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving a tag device indicator that indicates a tag capability of a tag device. The method also includes generating a tag configuration associated with transmission of a backscatter signal based on a positioning reference signal (PRS). The tag configuration indicates a frequency shifting parameter based on a frequency shifting capability of a tag device, a phase scrambling parameter based on a phase scrambling capability of the tag device, or a combination thereof. The method further includes transmitting the tag configuration. Other aspects and features are also claimed and described.
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公开(公告)号：US20240179549A1
公开(公告)日：2024-05-30
申请号：US18060408
申请日：2022-11-30
Applicant: QUALCOMM Incorporated
Inventor： Mohammad Tarek Fahim , Srinivas Yerramalli , Xiaojie Wang , Jing Sun
CPC classification number: H04W24/10 , H04W56/0045 , H04W56/0065
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving, from a first transmission/receiving point (TRP), a first measurement report associated with a positioning session for a tag device. The method further includes receiving, from a second TRP, a second measurement report. The method also includes determining a position of the tag device based on the first measurement report, the second measurement report, and line of sight information associated with a line of sight between the first TRP and the second TRP. Other aspects and features are also claimed and described.
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公开(公告)号：US11641640B2
公开(公告)日：2023-05-02
申请号：US17387844
申请日：2021-07-28
Applicant: QUALCOMM Incorporated
Inventor： Marwen Zorgui , Srinivas Yerramalli , Xiaoxia Zhang , Piyush Gupta , Rajat Prakash , Junyi Li , Xiaojie Wang , Mohammad Tarek Fahim
Abstract: Techniques for location determination of user equipment (UE) are provided. In an aspect, a position estimation entity (e.g., UE, gNB, LMF, etc.) identifies a pool of UEs for a SL-assisted position estimation procedure of a set of target UEs. SL SRS-Ps are communicated (e.g., transmitted and measured) between the pool of UEs (e.g., for relative SL ranging). UL SRS-Ps are communicated by at least some of the UEs in the pool of UEs. The position estimation entity obtains measurement data for both the SL SRS-P and UL-SRS-P communications. The position estimation entity determines a position estimate for each UE in the set of UEs based on the measurement information.
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